Door check



Feb. 14, 1950 F. JEROUSEK DQOR CHECK Filed Sept. 15, 1946 Inventor 3 Frfink Jernus Bk 3 f A By WW k/9 '6 I Attorneys Patented Feb. 14, 1950UNITED STATES PATENT OFFICE j .49mi? v I CHECK I11. Frank J erousek,Fullerton, Md.

Application September 13, 1946, Serial No. 696,836

4 Claims. (01. 16-86) This invention relates to door checks, such as areemployed in holding doors in opened position and which are especiallydesirable when cleaning rooms to hold the door in fully opened positionin spite of draughts or other tendencies of the door to swing closed.

An important object of the invention is to provide a unitary fixturewhich can be readily applied to the usual base board of a wall for thepurpose of positively holding a door in fully opened position, withoutany likelihood of the door overcoming the effect of the holder under theinfluence of draughts or other causes.

Another object of the invention is to provide a door check constructedof but a few parts and capable of being manufactured and retailed at areasonable price.

Various other objects and advantages of the invention will becomeapparent to the reader of the following description.

In the drawing:

Figure 1 is a fragmentary perspective view Showing the holder applied toa base board;

Figure 2 is a horizontal sectional view through a door and lookingdownwardly in plan on the holder;

Figure 3 is a small side elevational View showing the relationship ofthe holder to a door;

Figure 4 is a fragmentary vertical sectional view taken on line 4-4 ofFigure 1.

Referring to the drawing, reference character A denotes a base board ofa wall, while reference character B denotes a door to be held by theimproved door check, generally referred to by numeral 5.

The door check consists of a rectangularshaped plate 6 having secured onits outer face and adjacent one end, a block 1 of some resilientmaterial, such as rubber.

Toward the opposite end of the plate 6 is secured the bight portion 8 ofa resilient U-shaped bracket, generally referred to by numeral 9, theleg portions 10 and H of which are horizontally disposed in a directionoutwardly of the plate 6, suitable rivets or the like [2 being employedto secure this bracket in fixed position on the plate 6.

The leg It is somewhat longer than the leg l and has an upstandingspring finger I3 at its outer end, curved outwardly at its lower portionas at M and at about the position against which the roller, to bedescribed hereinafter, engages.

The leg ID is rolled at its free end to provide a barrel or bearing forreceiving a vertically disposed shaft I6, which carries a disk or roller11 2 at its upper end and between this roller l1 and the bearing H5 is aspacing collar [8.

The periphery of the roller I! is circumferentially grooved to receivean endless resilient tire l9, preferably of rubber.

As can be seen in Figure 2, the tire [9 of the roller I1 is normallyspaced slightly from the curved portion of the finger I3.

When the door B is swung from the closed position shown in Figure 3 to afully opened position,

in pursuing this motion, the vertical free edge of the door engages thetire I9 of the roller l1 and exerts force against the roller as itrotates the same, forcing the roller against the spring finger l3 as itmoves to a position behind the roller, and at this position, the rolleris freed and the spring arm In returns the roller to a position, asshown in Figure 2 to define a blockade or obstacle against the return ofthe door B, without the employment of manual effort.

The door is swung to closed position by engaging the roller insubstantially the same manner and urging the same against the springfinger 13, the finger l3 of course offering resistance and requiringsome human effort to overcome.

Obviously, this device can be used for other closures, besides doors andit can be used on many types of machines for holding levers in setposition.

While the foregoing description sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

l. A door check comprising a horizontally disposed U-shaped bracket ofspring material, a. door engageable buffer carried by one leg of the U-shaped bracket and a backing plate rising from the other leg of thebracket and being in the path of said buffer when said buffer is engagedand displaced by the edge of a door.

2. A door check comprising a horizontally disposed U-shaped bracket ofspring material, a door engageable buffer carried by one leg of theU-shaped bracket and a backing plate rising from the other leg of thebracket and being in the path of said buffer when said bufier is engagedand displaced by the edge of a door, said plate being formed with anoffset for receiving a portion of the buffer.

3. A door check comprising a horizontally disposed u-shaped bracket ofspring material, a

2,497,611 3 4 door engageable bufier carried by one leg of the end toprovide a bearing, said buffer being in the U-shaped bracket and abacking plate rising from form of a wheel provided with an axle, saidaxle the other leg of the bracket and being in the being journaled insaid bearing. path of said bufier when said bufier is engaged anddisplaced by the edge of a door, said buffer 5 FRANK JEROUSEK. being inthe form of a revolubly mounted wheel.

4. A door check comprising a horizontally REFERENCES CITED disposedU'Shaped bracket of Spring material a The following references are ofrecord in the door engageable bufier carried by one leg of the file ofthis patent,

U-shaped bracket and a backing plate rising from 10 the other leg of thebracket and being in the UNITED STATES PATENTS path of said buffer whensaid buffer is engaged N D and displaced by the edge of a door, saidbuffer ggi b July 65 carrying leg portion being formed at its free

